This podcast episode discusses a study that found ‘concerning’ levels of PCBs in indoor school air.

University of Iowa researchers say they’re finding cancer-causing chemicals in some older Iowa schools.

Researchers report in ACS’ journal Environmental Science & Technology that concentrations of airborne PCBs inside schools could result in some students inhaling the compounds at higher levels than they would consume through their diets.

New research from the University of Iowa shows that polychlorinated biphenyls (PCBs), chemicals known to cause cancer in humans, are present in both schools in the district.